Corona-resistant composite enameled wire coating device and method for new energy automobile

Abstract

The invention relates to the field of enameled wire production and processing, in particular to a corona-resistant composite enameled wire coating device and method for a new energy automobile, and the device comprises an unwinding assembly, a spraying assembly, a baking assembly and a winding assembly, the spraying assembly is arranged on one side of the unwinding assembly, and the baking assembly is arranged on one side of the spraying assembly; the winding assembly is arranged on one side of the baking assembly, limiting strips are arranged on the side walls of the unwinding assembly, the spraying assembly, the baking assembly and the winding assembly, and limiting connecting blocks are connected between the limiting strips; the spraying assemblies and the baking assemblies are spliced through the limiting strips and the limiting connecting blocks, the number of the spraying assemblies and the number of the baking assemblies can be freely set when paint layers with different thicknesses are sprayed, the effect of one-time forming can be achieved when the paint layers with different thicknesses are machined, and the effect of one-time forming can be achieved when thin paint layers are machined. And the number of spraying assemblies and baking assemblies can be reduced, so that the use cost of equipment is reduced, and the production quality of equipment processing is improved.

Description

Technical Field

[0001] The present invention relates to the field of enameled wire production and processing, and in particular to a corona-resistant composite enameled wire coating device and method for new energy vehicles. Background Art

[0002] Enameled wire refers to a metal wire with insulating varnish as an insulating coating and used for winding electromagnetic coils, also known as electromagnetic wire.

[0003] In the existing enameled wire painting operation, when a certain thickness of paint layer needs to be applied, the felt painting method is usually used. However, the felt painting method is not suitable for enameled wire paints with too fast solvent evaporation or too high viscosity. Both too fast evaporation and too high viscosity will clog the pores of the felt and quickly lose its good elasticity and capillary siphon ability. When the spray painting method is used to apply a certain thickness of paint layer, multiple spraying is required to achieve the required thickness of the paint layer. The cost of the spray painting production line that is formed by multiple applications is relatively high, and when the required paint layer is thinner, the equipment function will be wasted. When the multiple spraying production line is not used for processing, the wire paint layer cannot be formed in one time, which reduces the wire production quality.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a corona-resistant composite enameled wire coating device and method for new energy vehicles with low use cost.

[0006] To achieve the above object, the technical solution of the present invention is implemented as follows, comprising: an unwinding assembly, a spraying assembly, a baking assembly and a winding assembly, wherein a spraying assembly is arranged on one side of the unwinding assembly, a baking assembly is arranged on one side of the spraying assembly, and a winding assembly is arranged on one side of the baking assembly; Limiting strips are arranged on the side walls of the unwinding assembly, the spraying assembly, the baking assembly and the winding assembly, and limiting connecting blocks are arranged between the limiting strips.

[0007] In a specific implementation, a corresponding number of spraying components and baking components are selected according to the spraying passes, and the unwinding component, spraying component, baking component and winding component are limitedly spliced ​​by limit strips and limit connecting blocks. The unprocessed wire is unwound by the unwinding component, and the wire enters the spraying component. The wire is sprayed with paint by the spraying component. The wire after the painting operation enters the baking component, and then the painted wire is baked by the baking component to evaporate and solidify the paint on the wire. The wire after the baking operation enters the spraying component for painting, and then enters the baking component for baking. The process is repeated until the paint is sprayed to the required thickness, and the last painting operation is thinner than the previous paint thickness. The wire is then baked by the baking component and wound up by the winding component.

[0008] Furthermore, the unwinding assembly includes an unwinding frame, on which an unwinding roller is rotatably mounted, and on the unwinding frame, a unwinding guide roller is rotatably arranged on a side close to the spraying assembly; with this design, when the wire enters the spraying assembly through the unwinding guide roller, no bending occurs.

[0009] Furthermore, the spray assembly includes a spray box, a first threaded connection port is opened on one side of the spray box, a second threaded connection port is opened on the other side of the spray box, a spray chamber is arranged in the spray box, and a plurality of spray heads are installed in the spray chamber; with this design, the wire is sprayed with paint through the spray heads.

[0010] Furthermore, a paint discharge port is provided at the bottom of the spray chamber, and a collection bin is provided in the spray box below the paint discharge port. With this design, excess paint generated during the painting operation flows from the paint discharge port into the collection bin to avoid accumulation inside the spray chamber.

[0011] Furthermore, the baking assembly includes a baking tank, a first connecting port is provided on one side of the baking tank, a second connecting port is provided on the other side of the baking tank, a baking tube is provided in the baking tank, a heating tube is provided in the baking tank outside the baking tube, a connecting groove is provided on the baking tube, and an exhaust pipe is provided on the top of the baking tank; with this design, the wire in the baking tube is painted by the heating tube to evaporate and solidify it, and the waste gas generated by the evaporation is discharged from the exhaust pipe, which is convenient for collecting and treating it, and avoiding the operator from absorbing poisonous gas.

[0012] Furthermore, the winding assembly includes a winding frame, on which a winding roller is rotatably mounted, and a winding guide roller is rotatably arranged on the side of the winding frame close to the baking assembly; with this design, the winding guide roller can prevent the wire from bending during winding and at the same time prevent the paint layer on the surface of the wire from being scratched.

[0013] Furthermore, a guide tube is threadedly installed at the first threaded connection port on the spray box, and a paint scraping tube is threadedly installed at the second threaded connection port on the spray box, the other side of the guide tube is adapted to the second connection port, and the other side of the paint scraping tube is adapted to the first connection port; with this design, the spray box is connected to the baking tank through the guide tube and the paint scraping tube, so that the wire spraying operation and the drying operation are in a closed space to avoid the processing quality being affected by external dust, and the guide tube and the paint scraping tube are heat-insulating to prevent hot air in the baking tank from entering the spray box.

[0014] Furthermore, a guide groove is installed in the guide tube, a first insulation ring is arranged on one side of the guide groove, a clamping groove is opened on the paint scraping tube, a paint scraping cavity is installed in the paint scraping tube, a paint scraping ring is arranged on one side of the paint scraping cavity, a clamping rod is arranged on the outer wall of the paint scraping ring, the paint scraping cavity is installed in the paint scraping tube through the clamping rod and the clamping groove, and a second insulation ring is arranged on one side of the paint scraping ring; with this design, when processing wires with different diameters, the equipment can process wires of different specifications by installing and replacing the guide groove and the paint scraping cavity, and at the same time, the paint scraping cavity is clamped on the paint scraping tube through the clamping groove and the clamping rod, which is convenient for replacing the paint scraping cavity. When the paint scraping cavity is used for a long time and a lot of paint liquid adheres to the surface, the paint scraping cavity can be replaced in time, and the replacement is convenient and will not affect the production quality. By using the first insulation ring and the second insulation ring, the hot air in the baking can is prevented from entering the spray box.

[0015] A method for using a corona-resistant composite enameled wire coating device for new energy vehicles, the method comprising the following steps: S1. First, select a guide tube with a suitable guide groove specification according to the thickness of the wire, select a paint scraping tube with a suitable paint scraping cavity specification according to the thickness of the spray paint, and select a corresponding number of spraying components and baking components according to the spraying pass. After the selection is completed, the guide tube and the paint scraping tube are threadedly installed on the spraying component, and the unwinding component, the spraying component, the baking component and the winding component are limitedly spliced ​​through the limit strip and the limit connection block. When splicing, the other side of the paint scraping tube is inserted into the first connection port, and the guide tube on the spraying component between the two baking components is inserted into the second connection port; S2. The unprocessed wire is unwound by the unwinding assembly, the wire passes through the unwinding guide roller and the guide tube into the spraying assembly, and the wire is sprayed with paint by the nozzle in the spraying assembly; S3. After the painting operation, the wire enters the baking assembly through the paint scraping tube, and the excess paint during the painting operation is scraped off when passing through the paint scraping tube, and then the painted wire is baked through the baking assembly to evaporate and solidify the paint on the wire; S4. After the baking operation, the wire enters the spraying component through the guide tube for painting operation, and then enters the baking component for baking operation. The process is repeated until the paint is sprayed to the required thickness. The last painting operation is thinner than the previous painting thickness. After that, it is baked by the baking component and then rolled up by the winding component.

[0016] The beneficial effects of the present invention are embodied in: In the present invention, the spraying components and the baking components are spliced ​​by limiting strips and limiting connecting blocks. When spraying paint layers of different thicknesses, the number of spraying components and baking components can be freely set, so that when processing paint layers of different thicknesses, a one-time forming effect can be achieved. When processing thinner paint layers, the number of spraying components and baking components can be reduced, thereby reducing the cost of equipment use and improving the production quality of equipment processing.

[0017] The present invention uses a guide tube and a paint scraping tube to seal the spraying component and the baking component. The spraying component and the baking component can be spliced ​​arbitrarily, and the wire is placed in a closed space during the painting and drying operations, so as to prevent external dust from affecting the processing quality and prevent the waste gas generated during the processing from polluting the outside air. At the same time, the paint scraping cavity and the paint scraping ring in the paint scraping tube can be used to scrape off the excess paint sprayed on the wire, so that the thickness of the paint layer on the surface of the wire after painting is uniform.

[0018] In the present invention, the paint scraping chamber is clamped on the paint scraping tube by the clamping groove and the clamping rod, so that the paint scraping chamber can be replaced easily. When the paint scraping chamber is used for a long time and a lot of paint liquid adheres to the surface, the paint scraping chamber can be replaced in time. The replacement is convenient and will not affect the production quality. By using the first insulation ring and the second insulation ring, the hot air in the baking tank can be prevented from entering the spray box, so that the hot air can be prevented from affecting the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a corona-resistant composite enameled wire coating device for new energy vehicles provided by the present invention; Figure 2 A cross-sectional view of a spraying component and a baking component is provided for the present invention; Figure 3 A schematic diagram of the three-dimensional structure of the guide tube provided by the present invention; Figure 4 A schematic diagram of the three-dimensional structure of the paint scraping tube provided by the present invention; Figure 5 for Figure 2 A local enlarged schematic diagram of point A is provided.

[0020] Description of reference numerals: 1. Unwinding assembly; 11. Unwinding rack; 12. Unwinding roller; 13. Unwinding guide roller; 2. Spraying assembly; 21. Spraying box; 211. First threaded connection port; 212. Second threaded connection port; 22. Spraying chamber; 221. Paint discharge port; 23. Spray head; 24. Collecting bin; 3. Baking assembly; 31. Baking jar; 311. First connection port; 312. Second connection port; 32. Baking tube; 321. Connecting groove; 33. Heating tube; 34. Exhaust tube; 4. Winding assembly; 41. Winding rack; 42. Winding roller; 43. Winding guide roller; 5. Limiting strip; 6. Limiting connection block; 7. Guide tube; 71. Guide groove; 72. First insulation ring; 8. Paint scraping tube; 81. Paint scraping chamber; 811. Paint scraping ring; 82. Snap-in groove; 83. Snap-in rod; 84. Second insulation ring. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the invention.

[0022] It should be noted that if the embodiments of the invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the invention.

[0024] See also Figures 1 to 5 : The present invention discloses a corona-resistant composite enameled wire coating device for new energy vehicles, comprising: an unwinding component 1, a spraying component 2, a baking component 3 and a winding component 4, wherein the unwinding component 1 is provided with the spraying component 2 on one side, the baking component 3 is provided with the baking component 3 on one side, and the winding component 4 is provided with the baking component 3 on one side; Limiting strips 5 are arranged on the side walls of the unwinding assembly 1 , the spraying assembly 2 , the baking assembly 3 and the winding assembly 4 , and limiting connecting blocks 6 are arranged between the limiting strips 5 .

[0025] In a specific implementation, a corresponding number of spraying components 2 and baking components 3 are selected according to the spraying passes, and the unwinding component 1, the spraying component 2, the baking component 3 and the winding component 4 are limitedly spliced ​​by the limiting strip 5 and the limiting connecting block 6. The unprocessed wire is unwound by the unwinding component 1, and the wire enters the spraying component 2. The wire is sprayed with paint by the spraying component 2. The wire after the painting operation enters the baking component 3, and then the painted wire is baked by the baking component 3 to evaporate and solidify the paint on the wire. The wire after the baking operation enters the spraying component 2 for painting, and then enters the baking component 3 for baking. The process is repeated until the paint is sprayed to the required thickness, and the last painting operation is thinner than the previous paint thickness. Then, it is baked by the baking component 3 and wound by the winding component 4.

[0026] In the present invention, the unwinding assembly 1 includes an unwinding frame 11, on which an unwinding roller 12 is rotatably mounted, and on the unwinding frame 11, a side close to the spraying assembly 2 is rotatably provided with an unwinding guide roller 13; with this design, when the wire enters the spraying assembly 2 through the unwinding guide roller 13, no bending occurs.

[0027] In the present invention, the spray assembly 2 includes a spray box 21, a first threaded connection port 211 is provided on one side of the spray box 21, a second threaded connection port 212 is provided on the other side of the spray box 21, a spray chamber 22 is provided in the spray box 21, and a plurality of spray heads 23 are installed in the spray chamber 22; with this design, the wire is sprayed with paint through the spray heads 23.

[0028] In the present invention, a paint discharge port 221 is provided at the bottom of the spray chamber 22, and a collection bin 24 is provided in the spray box 21 below the paint discharge port 221. With this design, excess paint generated during the painting operation flows from the paint discharge port 221 into the collection bin 24 to avoid accumulation inside the spray chamber 22.

[0029] According to the present invention, the baking assembly 3 includes a baking jar 31, a first connection port 311 is provided on one side of the baking jar 31, a second connection port 312 is provided on the other side of the baking jar 31, a baking tube 32 is provided in the baking jar 31, a heating tube 33 is provided in the baking jar 31 outside the baking tube 32, a connecting groove 321 is provided on the baking tube 32, and an exhaust pipe 34 is provided on the top of the baking jar 31; in this design, the wire in the baking tube 32 is painted by the heating tube 33 to evaporate and solidify it, and the waste gas generated by the evaporation is discharged from the exhaust pipe 34, which is convenient for collecting and treating it, and avoiding the operator from adsorbing poisonous gas.

[0030] In the present invention, the winding assembly 4 includes a winding frame 41, on which a winding roller 42 is rotatably installed, and on the winding frame 41, a winding guide roller 43 is rotatably provided on the side close to the baking assembly 3; such a design can prevent the wire from bending during winding by the winding guide roller 43, and at the same time prevent the paint layer on the surface of the wire from being scratched.

[0031] In the present invention, a guide tube 7 is threadedly installed at the first threaded connection port 211 on the spray box 21, and a paint scraping tube 8 is threadedly installed at the second threaded connection port 212 on the spray box 21. The other side of the guide tube 7 is adapted to the second connection port 312, and the other side of the paint scraping tube 8 is adapted to the first connection port 311. With this design, the spray box 21 is connected to the baking tank 31 through the guide tube 7 and the paint scraping tube 8, so that the wire spraying operation and the drying operation are in a closed space to avoid the processing quality being affected by external dust, and the guide tube 7 and the paint scraping tube 8 have heat insulation properties to prevent the hot air in the baking tank 31 from entering the spray box 21.

[0032] In the present invention, a guide groove 71 is installed in the guide tube 7, a first heat insulation ring 72 is arranged on one side of the guide groove 71, a clamping groove 82 is opened on the paint scraping tube 8, a paint scraping cavity 81 is installed in the paint scraping tube 8, a paint scraping ring 811 is arranged on one side of the paint scraping cavity 81, a clamping rod 83 is arranged on the outer wall of the paint scraping ring 811, the paint scraping cavity 81 is installed in the paint scraping tube 8 through the clamping rod 83 and the clamping groove 82, and a second heat insulation ring 84 is arranged on one side of the paint scraping ring 811; in this design, when processing different circles, When the paint scraping chamber 81 is used, the equipment can process wires of different specifications by installing and replacing the guide groove 71 and the paint scraping chamber 81. At the same time, the paint scraping chamber 81 is connected to the paint scraping tube 8 through the clamping groove 82 and the clamping rod 83, which is convenient for replacing the paint scraping chamber 81. When the paint scraping chamber 81 is used for a long time and there is a lot of paint liquid adhering to the surface, the paint scraping chamber 81 can be replaced in time. The replacement is convenient and will not affect the production quality. The use of the first insulation ring 72 and the second insulation ring 84 can prevent the hot air in the baking can 31 from entering the spray box 21.

[0033] A method for using a corona-resistant composite enameled wire coating device for new energy vehicles, the method comprising the following steps: S1. First, select the guide tube 7 with the appropriate specification of the guide groove 71 according to the thickness of the wire, select the paint scraping tube 8 with the appropriate specification of the paint scraping cavity 81 according to the thickness of the spray paint, and select the corresponding number of spraying components 2 and baking components 3 according to the spraying pass. After the selection is completed, the guide tube 7 and the paint scraping tube 8 are threadedly installed on the spraying component 2, and the limit strip 5 and the limit connection block 6 are used to limit the splicing between the unwinding component 1, the spraying component 2, the baking component 3 and the winding component 4, and the other side of the paint scraping tube 8 is inserted into the first connection port 311 during the splicing, and the guide tube 7 on the spraying component 2 between the two baking components 3 is inserted into the second connection port 312; S2. The unprocessed wire is unwound by the unwinding assembly 1, and the wire passes through the unwinding guide roller 13 and the guide tube 7 into the spraying assembly 2, and the wire is sprayed with paint by the nozzle 23 in the spraying assembly 2; S3. After the painting operation, the wire enters the baking assembly 3 through the paint scraping tube 8, and the excess paint during the painting operation is scraped off when passing through the paint scraping tube 8, and then the painted wire is baked through the baking assembly 3 to evaporate and solidify the paint on the wire; S4. After the baking operation, the wire enters the spraying component 2 through the guide tube 7 for painting operation, and then enters the baking component 3 for baking operation. The process is repeated until the paint is sprayed to the required thickness. The last painting operation is thinner than the previous paint thickness. Then, after being baked by the baking component 3, it is rolled up by the winding component 4.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corona-resistant composite enameled wire coating device for new energy vehicles is characterized in that: include: An unwinding component (1), a spraying component (2), a baking component (3) and a winding component (4), wherein the spraying component (2) is arranged on one side of the unwinding component (1), the baking component (3) is arranged on one side of the spraying component (2), and the winding component (4) is arranged on one side of the baking component (3); Limiting strips (5) are arranged on the side walls of the unwinding assembly (1), the spraying assembly (2), the baking assembly (3) and the winding assembly (4), and limiting connecting blocks (6) are arranged between the limiting strips (5).

2. The corona-resistant composite enameled wire coating device for new energy vehicles according to claim 1, characterized in that: The unwinding assembly (1) comprises an unwinding frame (11), on which an unwinding roller (12) is rotatably mounted, and on the side of the unwinding frame (11) close to the spraying assembly (2) is an unwinding guide roller (13) rotatably mounted.

3. The corona-resistant composite enameled wire coating device for new energy vehicles according to claim 2, characterized in that: The spraying assembly (2) comprises a spraying box (21), one side of the spraying box (21) is provided with a first threaded connection port (211), the other side of the spraying box (21) is provided with a second threaded connection port (212), a spraying chamber (22) is arranged in the spraying box (21), and a plurality of spray heads (23) are installed in the spraying chamber (22).

4. The corona-resistant composite enameled wire coating device for new energy vehicles according to claim 3, characterized in that: A paint discharge port (221) is provided at the bottom of the spray chamber (22), and a collection bin (24) is provided in the spray box (21) below the paint discharge port (221).

5. The corona-resistant composite enameled wire coating device for new energy vehicles according to claim 4, characterized in that: The baking assembly (3) comprises a baking jar (31), a first connection port (311) being provided on one side of the baking jar (31), a second connection port (312) being provided on the other side of the baking jar (31), a baking tube (32) being provided inside the baking jar (31), a heating tube (33) being provided outside the baking tube (32), a connecting groove (321) being provided on the baking tube (32), and an exhaust pipe (34) being provided on the top of the baking jar (31).

6. The corona-resistant composite enameled wire coating device for new energy vehicles according to claim 5, characterized in that: The winding assembly (4) comprises a winding frame (41), on which a winding roller (42) is rotatably mounted, and a winding guide roller (43) is rotatably mounted on a side of the winding frame (41) close to the baking assembly (3).

7. The corona-resistant composite enameled wire coating device for new energy vehicles according to claim 6, characterized in that: A guide tube (7) is threadedly mounted at the first threaded connection port (211) on the spray box (21), and a paint scraping tube (8) is threadedly mounted at the second threaded connection port (212) on the spray box (21); the other side of the guide tube (7) is matched with the second connection port (312), and the other side of the paint scraping tube (8) is matched with the first connection port (311).

8. The corona-resistant composite enameled wire coating device for new energy vehicles according to claim 7, characterized in that: A guide groove (71) is installed in the guide tube (7), a first heat insulation ring (72) is arranged on one side of the guide groove (71), a clamping groove (82) is opened on the paint scraping tube (8), a paint scraping cavity (81) is installed in the paint scraping tube (8), a paint scraping ring (811) is arranged on one side of the paint scraping cavity (81), a clamping rod (83) is arranged on the outer wall of the paint scraping ring (811), the paint scraping cavity (81) is installed in the paint scraping tube (8) by means of the clamping rod (83) and the clamping groove (82), and a second heat insulation ring (84) is arranged on one side of the paint scraping ring (811).

9. The method for using the corona-resistant composite enameled wire coating device for new energy vehicles is characterized in that The corona-resistant composite enameled wire coating device for new energy vehicles according to any one of claims 1 to 8 is used, and the method for using the corona-resistant composite enameled wire coating device for new energy vehicles comprises the following steps: S1. First, a guide tube (7) with a suitable specification of the guide groove (71) is selected according to the thickness of the wire, and a paint scraping tube (8) with a suitable specification of the paint scraping chamber (81) is selected according to the thickness of the spray paint. At the same time, a corresponding number of spraying components (2) and baking components (3) are selected according to the number of spraying passes. After the selection is completed, the guide tube (7) and the paint scraping tube (8) are threadedly installed on the spraying component (2), and the unwinding component (1), the spraying component (2), the baking component (3) and the winding component (4) are limitedly spliced ​​by the limit strip (5) and the limit connection block (6). When splicing, the other side of the paint scraping tube (8) is inserted into the first connection port (311), and the guide tube (7) on the spraying component (2) between the two baking components (3) is inserted into the second connection port (312); S2. The unprocessed wire is unwound by the unwinding assembly (1), the wire passes through the unwinding guide roller (13) and the guide tube (7) into the spraying assembly (2), and the wire is sprayed with paint by the nozzle (23) in the spraying assembly (2); S3. The wire after the painting operation enters the baking component (3) through the paint scraping tube (8), and the excess paint during the painting operation is scraped off when passing through the paint scraping tube (8), and then the painted wire is baked through the baking component (3) to evaporate and solidify the paint on the wire; S4. After the baking operation, the wire enters the spraying component (2) through the guide tube (7) for painting operation, and then enters the baking component (3) for baking operation. This process is repeated until the paint is sprayed to the required thickness. The last painting operation is thinner than the previous painting thickness. After baking in the baking component (3), it is rolled up by the winding component (4).

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